Top Definition
The overwhelming feeling that the "Fear Of Missing Out" (acronym "FOMO") might actually kill you.
O'Bryan's bar studying was going fine for about 15 minutes until he got on Facebook and realized how much fun everyone was having without him. He became instantly FOMOcidal, which led to situational depression and another hour of procrastination on the internet.
by BlueSteel16 May 28, 2013

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